Evidence map›Paper›PMID 31226260›Full record

ArticlePharmacology, biochemistry, and behavior2019

Methylphenidate increases willingness to perform effort in adults with ADHD.

Merideth A Addicott, Julia C Schechter, Jeffrey J Sapyta, James P Selig, Scott H Kollins, Margaret D Weiss

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Pharmacology, biochemistry, and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02630017 (Motivated Behavior in Adults With and Without ADHD), which is not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02630017 phase2completednot on this map

Motivated Behavior in Adults With and Without ADHD

TypeinterventionalSponsorUniversity of ArkansasRan2016 to 2018Enrolled51ConditionsADHDArmsADHD methylphenidate first, placebo second, ADHD placebo first, methylphenidate second, Non-ADHD methylphenidate first, placebo second, Non-ADHD placebo first, methylphenidate second
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Attention-deficit/hyperactivity disorder and the explore/exploit trade-off.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
    Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Amphetamines Improve the Motivation to Invest Effort in Attention-Deficit/Hyperactivity Disorder.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  9. Article
  10. Article
  11. Off-Label Medication: From a Simple Concept to Complex Practical Aspects.International journal of environmental research and public health · 2021
    Review
  12. Review
  13. Is it worth the effort?Science (New York, N.Y.) · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Merideth A AddicottUniversity of Arkansas for Medical Sciences, United States of America. Electronic address: maddicott@uams.edu.
Julia C SchechterDuke University School of Medicine, United States of America.
Jeffrey J SapytaDuke University School of Medicine, United States of America.
James P SeligUniversity of Arkansas for Medical Sciences, United States of America.
Scott H KollinsDuke University School of Medicine, United States of America.
Margaret D WeissUniversity of Arkansas for Medical Sciences, United States of America.
Duke University · USUniversity of Arkansas for Medical Sciences · US

Funding

Acute and Chronic Nicotine Modulation of Reinforcement LearningK01DA033347 · NIDA · UNIV OF ARKANSAS FOR MED SCIS · PI ADDICOTT, MERIDETH A. · 2013 to 2017
$734k
NIDA NIH HHS K01 DA033347
6 · The paper itself

Abstract

backgroundA reduced willingness to perform effort based on the magnitude and probability of potential rewards has been associated with diminished dopamine function and may be relevant to attention-deficit/hyperactivity disorder (ADHD). Here, we investigated the influence of ADHD status and methylphenidate on effort-based decisions. We hypothesized that ADHD participants would make fewer high-effort selections than non-ADHD subjects, and that methylphenidate would increase the number of high-effort selections. Furthermore, we hypothesized there would be associations among ADHD severity and methylphenidate-related changes in effort-based and attentional performance across all participants. METHODS AND

participantsADHD (n = 23) and non-ADHD (n = 23) adults completed the Effort Expenditure for Rewards Task in which participants select between low-effort and high-effort options to receive monetary rewards at varying levels of reward magnitude and probability. A test of attentional performance was also completed.

resultsOverall, participants made more high-effort selections as potential reward magnitude and probability increased. ADHD participants did not make fewer high-effort selections than non-ADHD participants, but ADHD participants showed greater methylphenidate-related increases in high-effort selections. ADHD participants had worse attentional performance than non-ADHD participants. ADHD severity was associated with methylphenidate-related changes in high-effort selections, but not changes in attentional performance.

conclusionsThese results indicate that methylphenidate increases the willingness to perform effort in individuals with ADHD, possibly due to disorder-related motivational deficits. This provides support for theories of insufficient effort allocation among individuals with ADHD.

trial registrationClinicaltrials.gov Identifier, NCT02630017.

Indexed as

RewardAdultAttentionAttention Deficit Disorder with HyperactivityCentral Nervous System StimulantsFemaleHealthy VolunteersHumansMaleMethylphenidateMotivationNeuropsychological TestsReaction TimeSeverity of Illness IndexTask Performance and AnalysisYoung AdultCentral Nervous System StimulantsMethylphenidateAttentionAttention-deficit/hyperactivity disorderEffortMethylphenidate

Identifiers

PMID31226260
PMCPMC6628703
OpenAlexW2952571281

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.